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Method for preparing beet pigments

A beet pigment and extraction technology, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of single color of beet pigment products, pollution of harmful impurities, complicated extraction process, etc., and achieve low cost and no cost. Pollution, multi-color effect

Inactive Publication Date: 2009-09-02
SUBTROPICAL CROPS INST OF FUJIAN PROVINCE
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Problems solved by technology

[0002] The existing beet pigment extraction, the raw materials are red beet, cockscomb, pokeweed berries, or cactus plants, the extraction methods all use organic solvents and acid-base solutions as extraction media, and there is a risk of harmful impurities. And the extraction process is complicated, the cost is higher, and the color of the obtained beet pigment product is single

Method used

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Embodiment Construction

[0008] A kind of preparation method of beetroot pigment of the present invention, comprises the following steps:

[0009] 1) At room temperature of 25°C, add 100g of fresh bracts of bougainvillea of ​​different colors and the florets inside each color to distilled water, and the ratio of bracts and florets inside: distilled water is 1:5 (g / v);

[0010] 2) At the same room temperature, the kneading pressure is 4-8kg / cm 2 knead the juice from the grinder until the used bract tissue is whitish in color and the florets are only green;

[0011] 3) At the same room temperature, divide the juice with residue into 500ml centrifuge tubes, and centrifuge at a relative centrifugal force of 20,000g for 10 minutes;

[0012] 4) At the same room temperature, collect the resulting supernatant juice;

[0013] 5) The residue is washed with distilled water, and step 4 is repeated;

[0014] 6) Then, the solid product was obtained by vacuum drying, and the yields of betalain prepared from red, ...

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Abstract

The invention relates to a method for preparing beet pigments, which is characterized in that a raw material of the beet pigments is triangle plum blossom. The Bougainvillea spectabilia Willa flower is prepared into Bougainvillea spectabilia Willa flower beet pigment products by kneadding, hydrosolvent lixiviation, separation, purification, condensation and dryness. The method has the advantages that the Bougainvillea spectabilia Willa flower taken as the raw material is prepared into the beet pigments and provides a new supply source for abstracting the beet pigments; water taken as an extraction solvent makes beet pigment preparation have low cost and no pollution; the Bougainvillea spectabilia Willa flower has is easy to plant, has large flower quantity and more color systems, and can extract the beet pigments with different color systems.

Description

technical field [0001] The invention relates to a preparation method of beet pigment, in particular to a preparation method of beet pigment using Bougainvillea bougainvillea as raw material. Background technique [0002] The existing beet pigment extraction, the raw materials are red beet, cockscomb, pokeweed berries, or cactus plants, the extraction methods all use organic solvents and acid-base solutions as extraction media, and there is a risk of harmful impurities. Moreover, the extraction process is complicated, the cost is high, and the obtained beet pigment product has a single color. Contents of the invention [0003] The object of the present invention is to provide a method for preparing beet pigments using bougainvillea flowers as raw materials, and adopt three steps of distilled water leaching, centrifugal method one-time purification and decompression concentration and drying to prepare bougainvillea beet pigment solid products. Using water as a solvent can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
Inventor 徐夙侠黄青云陈淳
Owner SUBTROPICAL CROPS INST OF FUJIAN PROVINCE
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